- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. al-Lubāb fī ʻilm al-iʻrāb1
- Ishārāt wa-al-tanbīhāt (Avicenna)1
- Islam--Apologetic works1
- Islam--Functionaries1
- Islam--Terminology1
- Islamic etiquette1
- Islamic heresies1
- Islamic literature, Arabic1
- Islamic religious education1
- Islamic sects1
- Islamic stories, Arabic1
- Isnawī, ʻAbd al-Raḥīm ibn al-Ḥasan, 1305-13701
- Israel--Acre1
- Israel--Tsefat1
- Italy--Sicily1
- Izmīrī, Muṣṭafá ibn Rajab, active 17th century1
- Iḥyāʼ ʻulūm al-dīn (Ghazzālī)1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tashyīd al-Qawāʻid1
- Jaghmīnī, Maḥmūd ibn Muḥammad, -1221?1
- Jamʻ bayna al-ṣaḥīḥayn (Ḥumaydī, Muḥammad ibn Fattūḥ)1